Leslie Joana Korostoff, MD
NPI 1417096959ActiveIndividual· Specialist· Glendale, CA
Specialist (MD) in Glendale, California, trained at Saint Louis University School of Medicine (class of 1998). Their prescriptions cost Medicare Part D more than their services did: $30,309 for 346 claims, against $14,302 paid for services in 2024. Sage Therapeutics, LLC was the largest of 8 companies reporting payments in 2025, $387.30 in all, mostly food and beverage.
Overview
| NPI | 1417096959 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | Yes |
| NPI issued | Feb 5, 2007 |
| Last updated in NPPES | Jul 27, 2022 |
| Certified by provider | Jul 27, 2022 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Specialist Primary | 174400000X | A96824 | CA |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Nov 10, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 11, 2026 | No match | — |
| New York OMIG · Nov 11, 2026 | No match | — |
| Ohio Medicaid · Nov 11, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 11, 2026 | No match | — |
| Washington HCA · Nov 11, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Obstetrics/Gynecology (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 177 |
|---|---|
| Services billed | 266 across 13 procedure codes |
| Paid by Medicare | $14,302 |
Part D prescriptions in 2024
| Prescriptions (claims) | 346 · 695 30-day fills |
|---|---|
| Patients | 94 |
| Total drug cost | $30,309 |
| Generic share | 88% of claims |
Education and affiliations
| Medical school | Saint Louis University School of Medicine |
|---|---|
| Graduation year | 1998 |
| Medicare specialty | Obstetrics/Gynecology |
Medical group
- Usc Care Medical Group IncLos Angeles, CA · 1,380 clinicians
Hospital affiliations
- Providence Saint Joseph Medical CtrBurbank, CA
- Usc Verdugo Hills HospitalGlendale, CA
Industry payments (Open Payments)
- 2025$387.30 · 16 payments from 8 companies
- 2024$396.11 · 17 payments from 10 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Sage Therapeutics, LLC | $137.67 | 5 |
| Mayne Pharma Commercial LLC | $62.39 | 3 |
| Millicent US Inc | $52.35 | 3 |
| Astellas Pharma US Inc | $34.41 | 1 |
| Exact Sciences Corporation | $33.95 | 1 |
What the 2025 payments were for
- Food and Beverage$387.30 · 16 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 71 Specialist providers in Glendale · All Specialist providers in California